An equilateral triangle with side length 19 cm is shown in the diagram, work out the height of the triangle. Give your answer rounded to 1 DP. The diagram is not drawn accurately.

Answers

Answer 1

Answer:

h = 16.5

Step-by-step explanation:

Remark

The formula below really is the Pytharagan formula disguised.

h^2 = hypotenuse (side)^2 - (1/2 side)^2

Givens

side = 19 cm

Solution

h^2 = 19^2 - (1/2*19)^2      Substitute given into formula

h^2 = 361 - (9.5)^2            square 9.5

h^2 = 361 - 90.25             Subtract

h^2 = 270.75                    Take the square root of both sides

√h^2 = √270.75

Answer: h = 16.5


Related Questions

Please help me on this equation

3 3/4 ÷ 5/7 =

Answers

Answer:

5  1/4

Step-by-step explanation:

3 3/4  / ( 5/7) =

15/4  / ( 5/7) =

15/4  *  7/5  =

(15*7) / (4*5 )

105 / 20  =  5 1/4

Answer:

5.25

Step-by-step explanation:

Turn mixed number into a improper fraction.

Divide fraction by 20.

It doesn’t matter if 5 1/4, or 21/4 or 5.25., they all equal the same.

if A(x) = -x^2 + 4, B(x) = -3x - 4, and C(x) = 5x^2 + 2x, form a simplified expression for A(x) + B(x) + C(x).

Answers

Answer:

5x² - x - 4

Step-by-step explanation:

B(x) + C(x)

= - 3x - 4 + 5x² + 2x ← collect like terms

= 5x² - x - 4

If b= 110 degrees and a= 50 degrees, what is the value of x?

Answers

I think you're question is incomplete or is missing an attachment.

If a trapezoid has bases with lengths of 10 cm and 20 cm, and the height is 12 cm, what is the area
of the trapezoid?

Answers

Answer:

180

((10 + 20/2) * 12 = 180

Step-by-step explanation:

Step-by-step explanation:

Given;

b = 10cm

a = 20cm

h = 12cm

Area of trapezoid = 1/2 *h*(a+b)

                               = 1/2 *12* ( 20+10)

                               = 180cm^2  

To which family does the function y = (x 2) superscript one-half baseline 3 belong? quadratic square root exponential reciprocal

Answers

The function y = √(x + 2) + 3 is a quadratic function. Then the correct optin is A.

What is a quadratic equation?

It is a polynomial that is equal to zero. Polynomial of variable power 2, 1, and 0 terms are there. Any equation having one term in which the power of the variable is a maximum of 2 then it is called a quadratic equation.

The equation is given below.

[tex]y = (x+2)^{1/2} + 3[/tex]

The equation can be written as

[tex]y - 3= (x+2)^{1/2}[/tex]

Square on both sides, we have

[tex]\begin{aligned} (y - 3)^2 &= [(x+2)^{1/2}]^2 \\\\x + 2 &= y^2 + 9 -6y \\\\x &= y^2 -6y +7 \end{aligned}[/tex]

The equation is a quadratic equation.

More about the quadratic equation link is given below.

https://brainly.com/question/2263981

Answer:

A) Quadratic

Explanation:

Hope you have a great day!

Four eggs are required to make two duzzen muffins. how many eggs are needed to make 5 dozen muffins

Answers

Answer:

20 eggs

Step-by-step explanation:

4 = 24 muffins

4*5 = 20

20 = 60 muffins

Good Luck!

Find the missing angle

Answers

Answer:

68 degrees.

Step-by-step explanation:

A right angle is 90 degrees. If you subtract 90-22 you will get 68.

90 equals the angle a plus 22.
So a equals 90-22 which is 68.
This is about 3 times the angle of 22. This make sense visually.
Mark as best!

help me, please??????

Answers

Answer:

B

Step-by-step explanation:

The slope of this function is obviously decreasing, and the point where it intersects the y axis, is (0,-2)

Answer B contains this information

Hope this helps!

Find the y-intercept and the slope of the line. y=-5/4x+3

Answers

Answer:

y intercept is (3,0) and slope is -5/4

Step-by-step explanation:

Look at the equation and know y=mx+b formula

Mr. beasley 's science class wants to decorate one wall in the classroom like an underwater scene. They use sheets of blue poster board that are 2 feet long and 2 feet wide. How many sheets of blue poster board are used to cover the entire area of the wall? use math words and symbols to explain how you solve

Answers

Answer:

Area of the sheet = 2×2 = 4 feet2

Step-by-step explanation:

A tortoises walking in the desert it walks for six minutes at a speed of 7.68 m per minute. For how many meters does it walk

Answers

Answer:

It walks 46.08 meters

Step-by-step explanation:

It states that the toriose's speed is 7.68 m per minute, all we have to do is 7.68 m per minute times 6 minutes.

7.68 * 6 = 46.08

It walks 46.08 meters

Which measure of spread is least affected by the long tail in the
graph?
Vehicle A
>
0
1
2
2
3
5
6
0)
7
CO
9
4
Repairs per Vehicle
MAD
IQR
Range

Answers

Answer:

IQR

Step-by-step explanation:

I got it right :)

Last one, I promise!!! ._.

19x+28=20x-53

Answers

Answer:

x = 81

Step-by-step explanation:

Given:

[tex]\displaystyle \large{19x+28=20x-53}[/tex]

Subtract both sides by 28:

[tex]\displaystyle \large{19x+28-28=20x-53-28}\\\displaystyle \large{19x=20x-81}[/tex]

Subtract both sides by 19x:

[tex]\displaystyle \large{19x-19x=20x-81-19x}\\\displaystyle \large{0=x-81}[/tex]

Add both sides by 81:

[tex]\displaystyle \large{0+81=x-81+81}\\\displaystyle \large{81=x}\\\displaystyle \large{\therefore x=81}[/tex]

Therefore, the solution is x = 81

Let me know if you have any questions!

[tex]{\boxed{\mathfrak{✿ฺSolution :}}} [/tex]

[tex] \bold{ 19x+28 = 20 x - 53 }[/tex]

[tex] \bold{ 19x+28 - 28 =20x - 53 - 28}[/tex]

[tex]\bold{ 19x = 20x - 81 }[/tex]

[tex]\bold{ 19x - 20x = 20x - 81 - 20x }[/tex]

[tex]\bold{ -x = - 81 }[/tex]

[tex]\bold{ \frac{ - x}{ - 1} = \frac{ - 81}{ - 1} }[/tex]

[tex] \bold{ x = 81 }[/tex]

What are the formulas and steps to solve Area of composite figures

Answers

Answer:

28 in2

Step-by-step explanation:

2×2÷2 + 2×2÷2 + 4×6

2in square +

2in square +

24in square=

28in squarr

The for formula for finding the area of a triangle is width times length divided by 2, and the formula for finding the area of a square is width times length.

PLEASE HELP! I WILL GIVE BRAINLIEST AND NO LINKS PLEASE!

Answers

Answer:

Your answer would be the first one, 7/8 and 0.92, because they are only ones greater than 5/7 the rest equal under 5/7

Answer:

The two solutions: 7/8 & 0.92

Step-by-step explanation:

[tex]\frac{5}{7} =0.714[/tex]

7/8 = 0.875,  because 0.875 [tex]\geq 0.714[/tex]

0.92 because [tex]\geq[/tex] 0.714

Hope this helps

Nick plays guitar in a band. He estimates that he plays the wrong chord about 14% of the time. He uses a standard deck of cards to model the situation, with all the 2s and 3s representing when he plays a wrong chord. Which statement about his model is true?

Answers

Answer:

His model can be improved by removing one of the 2s from the deck.

Step-by-step explanation:

His model can be improved by removing one of the 2s from the deck.

Answer:

His model can be improved by removing one of the 2s from the deck.

Step-by-step explanation:

Plato/Edmentum

How many terms are in the following expression? x2+7x-13

Answers

Answer:

There are 3 terms

Step-by-step explanation:

Solve for x in the triangle. Round your answer to the nearest tenth. (Please help)

Answers

Answer:

x = 6.5

Step-by-step explanation:

Since this is a right triangle we can use trig functions

cos theta = adjacent side / hypotenuse

cos 23 = 6/x

x cos 23 / 6

x = 6 /cos 23

x=6.51816

Rounding to the nearest tenth

x = 6.5

-8 . (-10+(-7))
Please help im stuck on this.

Answers

Answer:

136.

Step-by-step explanation:

-8 . (-10+(-7))

= -8*-10 + - 8*-7

= 80 + 56

= 136.

66 books in 2 boxes how meany
books per box?

Answers

Answer:

33

Step-by-step explanation:

Write 23/12 as a mixed number.

Answers

Hey there!

23/12
= 23/1 ÷ 12/1

= 23/1 × 1/12

= 23(1) × 1(12)

= 23/12

≈ 1 11/12


Those steps above are somewhat easier to solving your given equation!


Anyways, your answer is: 1 11/12


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

Answer:

the answer is 1 11/12

Step-by-step explanation:

we know that 23 can fit once into 12,
so we can subtract 23 by 12 to get 11
now, we have 1 11/12

1 11/12

The figure below is made up of unit cubes that each have a volume of 1 cubic centimeter.

A. 7
B. 9
C. 11
D. 13



HELP PLEASE​

Answers

Answer:

c. 11

Step-by-step explanation:

Bottom row: 6 cubes

middle row: 4 cubes

top row: 1 cube

11 cubes total.


x/-6-8> -12

PLEASE HELP AND SOLVE

Answers

Answer:

24

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

x=24


Which choice describes an equation
that has a solution set of
"All real numbers"?
3(x + 1) = 3x + 3

Answers

Answer:

Step-by-step explanation:

Remark

Choose any number at all and see what happens.

Suppose x = 8

3*(8 + 1) = 3*8 + 3

3(9) = 27

3*8 + 3 = 24 + 3 = 27

What you have shown is that the second choice is incorrect. There is at least one value that makes the equation correct (that is, both sides come to the same result.)

If choice two is false then choice one must be true since these results may give the only 2 possible results.

what is the equation in standard form of the line that passes through the point (6, -1) and is parallel to the line represented by 8x + 3y =15?

Answers

The equation in standard form of the line is given by:

[tex]\frac{8}{3}x + y = 15[/tex]

What is a linear function?

A linear function is modeled by:

y = mx + b

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

In this problem, the line is parallel to 8x + 3y =15, hence the slope is given by:

[tex]m = -\frac{8}{3}[/tex]

It passes through the point (6, -1), hence:

y = mx + b

[tex]-1 = -\frac{8}{3} \times 6 + b[/tex]

b = 15

Hence:

[tex]y = -\frac{8}{3}x + 15[/tex]

In standard form:

[tex]\frac{8}{3}x + y = 15[/tex]

More can be learned about linear equations at https://brainly.com/question/24808124

im stuck hahahahahahha lol

Answers

Answer:

r=53 degrees

______

yan po

What is the domain and range?

Answers

Answer: domain: [-6,6] range: [-4,3]

Step-by-step explanation: domain is the smallest to biggest x value range is the smallest to biggest y value

If x = 2 and y = -3, what is the value of 2x^2 + 3xy – 2y^2?

Answers

Answer: Given as,X=2 & Y=3,

now multiplying we get,

2xxy=2×2×3=12

Ans.) 12

Step-by-step explanation:

Help!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

5pi in

6.25 pi in²

Step-by-step explanation:

The solution is attached

the answer is done by using similarity

MARK ME AS BRAINLIST

Answer:

EDIT: Answer was lost twice when saving, not answering again. Please delete if possible.

please could you give this answer quickly .​

Answers

Answer:

The answer of this question is 11.3

10-20. 20-30. 30-40. 40-50. 50-60

5. 4. 5. 4. 2. N=20

5. 9. 14. 18. 20

M.D= (N/2)

20/2

10th item

(30-40)

Again,

L=30,

I=10

f=5

cf=9

n/2=10

L+(n/2)*I/f

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